US20050022564A1 - Drum washing machine and method of controlling the same - Google Patents

Drum washing machine and method of controlling the same Download PDF

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Publication number
US20050022564A1
US20050022564A1 US10/811,851 US81185104A US2005022564A1 US 20050022564 A1 US20050022564 A1 US 20050022564A1 US 81185104 A US81185104 A US 81185104A US 2005022564 A1 US2005022564 A1 US 2005022564A1
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US
United States
Prior art keywords
water
tub
washing machine
drum washing
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/811,851
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English (en)
Inventor
Hyun Kim
Ki Joo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JOO, KI HUN, KIM, HYUN SOOK
Publication of US20050022564A1 publication Critical patent/US20050022564A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D06F2101/06—Type or material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/06—Type or material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/14—Supply, recirculation or draining of washing liquid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps

Definitions

  • the present invention relates, in general, to drum washing machines, and, more particularly, to a drum washing machine, and a method of controlling the drum washing machine, which determines an amount of load of laundry according to a number of water supplement operations due to variations of a water level.
  • a drum washing machine is a device that washes laundry using drops generated by rotation of a rotary tub having a drum shape.
  • a set amount of water is fed into a water tub, and then a rotary tub is rotated in opposite directions so as to allow laundry to be uniformly soaked with the water. Therefore, the laundry absorbs water and a current water level is low compared to an initial water level due to absorption of water by the laundry. Therefore, supplementary water is fed to restore the current low water level to the initial water level.
  • the amount of load of laundry is determined according to the number of water supplement operations. That is, if the number of water supplement operations is large, it is determined that the amount of load of laundry is large, while if the number of water supplement operations is small, it is determined that the amount of load of laundry is small in proportion to the number of water supplement operations.
  • the amount of load of laundry is used as basic data for later washing, rinsing and drying processes.
  • times required for laundry to sufficiently absorb water differ according to materials making up the laundry. Further, even in the case of laundry made of similar materials, degrees to which the laundry absorbs water and times in which the laundry absorbs water differ according to states in which the laundry is arranged. For example, if clothes of the laundry are overlapped or massed, differences in the degrees and times will be large.
  • a drum washing machine comprising a water tub, a rotary tub rotatably provided in the water tub, a pumping unit to pump water contained in a lower portion of the water tub into the rotary tub, and a control unit to control the pumping unit, wherein the control unit controls the pumping unit to pump the water contained in the lower portion of the water tub into the rotary tub while determining an amount of a laundry load.
  • the pumping unit may include a circulating pipe having a first end coupled to an inside of the water tub and a second end disposed at an inlet of the rotary tub, a pump to pump the water contained in the water tub into the rotary tub, and a spray nozzle disposed at the second end of the circulating pipe.
  • the drum washing machine may include a motor to rotate the rotary tub, wherein the control unit controls the motor to rotate the rotary tub in opposite directions while controlling an operation of the pumping unit.
  • the drum washing machine may include a water level sensor to detect a water level of the rotary tub, wherein the control unit determines the water level from the water level sensor in response to the pump and the motor being simultaneously stopped.
  • the dram washing machine may include a key input unit to receive washing courses according to materials of the laundry load, wherein the control unit operates the pump according to ON-OFF periods corresponding to the washing courses.
  • the key input unit may be provided with washing course buttons for one or more of cotton fabrics, mixed fabrics, woolen fabrics and synthetic fibers.
  • the ON-OFF periods of the pump may be set according to a chosen one of the washing course buttons. Durations of OFF periods of the ON-OFF periods may increase from the cotton fabrics, to the mixed fabrics, to the woolen fabrics, to the synthetic fibers.
  • the above and/or other aspects may also be achieved by providing a method of controlling a drum washing machine, the drum washing machine having a water tub, a rotary tub, and a pumping unit to pump water contained in a lower portion of the water tub into the rotary tub, the method including feeding a set amount of water according to a selected washing course, and operating the pumping unit to pump the water contained in the lower portion of the water tub into the rotary tub while determining an amount of a laundry load.
  • the drum washing machine control method may include operating a motor to rotate the rotary tub in opposite directions while controlling an operation of the pumping unit.
  • the drum washing machine control method may include determining a water level of the rotary tub through a water level sensor, which detects the water level of the rotary tub, in response to the pumping unit and the motor being simultaneously stopped.
  • the pumping unit may be designed so that a time duration of pumping operations thereof is preset according to materials of the laundry load.
  • the time duration of pumping operations of the pumping unit may increase from a cotton fabrics washing course, to a mixed fabrics washing course, to a woolen fabrics washing course, to a synthetic fiber washing course.
  • FIG. 1 is a perspective view showing an internal structure of a drum washing machine, according to an embodiment of the present invention
  • FIG. 2 is a control flowchart of a method of controlling the drum washing machine, according to an embodiment of the present invention
  • FIGS. 3A and 3B are timing diagrams showing a procedure of reading a water level value from a water level sensor so as to detect a current water level of a rotary tub in FIG. 2 ;
  • FIG. 4 is a control flowchart showing a method of setting an ON-OFF period of a pump according to washing course buttons which are chosen by a user based on materials of laundry;
  • FIGS. 5A, 5B , and 5 C are timing diagrams showing the ON-OFF period of the pump according to buttons of FIG. 4 .
  • FIG. 1 is a perspective view showing an internal structure of a drum washing machine, according to an embodiment of the present invention.
  • the drum washing machine of the present invention includes a water tub 10 and a rotary tub 11 rotatably provided in the water tub 10 .
  • a water feed pipe 12 is mounted at the water tub 10 to guide a flow of water flowing from an external water supply pipe into the water tub 10 .
  • a water feed valve 13 is mounted at the water feed pipe 12 to control the flow of water.
  • a detergent container 14 is mounted at the water feed pipe 12 .
  • a drain pipe 15 is disposed between a bottom of the water tub 10 , containing water flowing through the water feed pipe 12 in a lower portion thereof, and a drain-outlet.
  • a drain pump 16 and a drain valve 17 are mounted at the drain pipe 15 to pump the water contained in the lower portion of the water tub 10 .
  • a circulating pipe 18 branched from the drain pipe 15 , is disposed at a portion of the drain pipe 15 between the drain pump 16 and the drain valve 17 .
  • the circulating pipe 18 is constructed so that one end thereof is connected to an inside of the water tub 10 , and a remaining end thereof is provided at an inlet of the rotary tub 11 so as to circulate the water contained in the water tub 10 to the rotary tub 11 .
  • a spray nozzle 18 a is disposed at the remaining end of the circulating pipe 18 to spray the circulated water into the rotary tub 11 .
  • a circulating valve 19 is mounted at the circulating pipe 18 to prevent water from flowing into the circulating pipe 18 when draining.
  • the circulating pipe 18 , the drain pump 16 , the spray nozzle 18 a, and the circulating valve 19 form a pumping unit.
  • a reversible motor 20 is coupled to the rotary tub 11 , which is rotated by an operation of the motor 20 .
  • a water level sensor is mounted in the rotary tub 11 to detect a water level of the rotary tub 11 .
  • the water feed valve 13 , the motor 20 , the drain pump 16 , the drain valve 17 , the circulating valve 19 , and the water level sensor are electrically connected to a control unit that performs an entire control operation of the drum washing machine.
  • control unit controls the number of pumping operations of the drain pump 16 to be varied by setting an ON-OFF period of the drain pump 16 in response to signals received from the buttons.
  • FIG. 2 is a control flowchart of a method of controlling the drum washing machine, according to an embodiment of the present invention.
  • the water feed valve 13 is turned on for a certain period, so that water is fed into the water tub 10 until a level of the water reaches a preset water level in operation 100 . Accordingly, water flowing from the water feed pipe 12 fills a lower portion of the water tub 10 through the detergent container 14 .
  • the control unit controls the reversible motor 20 to rotate in forward and reverse directions so as to rotate the rotary tub 11 in opposite directions, and thus allow laundry to be sufficiently and uniformly soaked with water, in response to a signal indicating that a water level detected by the water level sensor reaches the preset water level in operation 110 .
  • the control unit controls the drain pump 16 to allow water contained in the lower portion of the water tub 10 to be circulated into the rotary tub 11 , and then sprayed onto the laundry, in operation 110 .
  • a water level is read from the water level sensor to detect a current water level of the rotary tub 11 in operation 120 .
  • the water level is read during an interval when both the motor and the pump are simultaneously turned off so as to detect a precise water level.
  • the water feed valve 13 is turned on to feed supplementary water so as to increase the current water level to the preset water level in operation 140 .
  • control unit repeatedly performs a series of operations in which laundry is allowed to be soaked with water and the supplementary water is fed, depending on the variations of the water level, for a preset period.
  • control unit determines whether the preset period has elapsed in operation 150 . If the preset period has not elapsed in operation 150 , the control unit performs operation 110 and repeats the operations of allowing the laundry to be soaked with water and feeding the supplementary water depending on the variations of the water level.
  • the number of water supplement operations performed during the preset period is determined in operation 160 .
  • the amount of load of the laundry is determined depending on the determined number of water supplement operations in operation 170 . That is, if the number of water supplement operations is large, it is determined that the amount of load of the laundry is large, while if the number of water supplement operations is small, it is determined that the amount of load of the laundry is small.
  • FIGS. 3A and 3B are timing diagrams showing a procedure of reading a water level from the water level sensor so as to detect a current water level of the rotary tub, as in operation 120 in FIG. 2 .
  • the motor 20 and the drain pump 16 have different ON-OFF periods.
  • the ON-OFF periods of the motor 20 and the drain pump 16 are set to have intervals T 1 during which the motor 20 and the drain pump 16 are simultaneously turned off.
  • the control unit reads a water level from the water level sensor during the intervals T 1 when the motor 20 and the drain pump 16 are simultaneously turned off, so as to detect a precise water level.
  • FIG. 4 is a control flowchart showing a method of setting the ON-OFF period of the pump according to washing course buttons, which are chosen by a user based on the materials of the laundry.
  • FIGS. 5A, 5B , and 5 C are timing diagrams showing the ON-OFF period of the pump according to the washing course buttons of FIG. 4 .
  • the ON-OFF period of the pump is set according to the washing courses classified by the materials of the laundry, such as cotton fabrics, mixed fabrics, woolen fabrics and synthetic fibers.
  • the ON-OFF period of the pump is set to be shorter than those for other fabrics, so that the number of pumping operations of the pump is increased, thereby enabling laundry to be sufficiently soaked with water within a short time.
  • the ON-OFF period of the pump is set to be next to that for the cotton fabrics in ON-OFF periods set in order from shortest to longest, thus reducing the number of pumping operations of the pump compared to the cotton fabrics.
  • the woolen fabrics have a small amount of load compared to the cotton fabrics and the mixed fabrics, but have very high absorptivity according to material and texture properties of the woolen fabrics.
  • the synthetic fibers have a small amount of load, small volume, small thickness, and low absorptivity compared to the cotton fabrics and mixed fabrics, so that the amount of water required for washing is small. Therefore, in the case of the woolen fabrics and the synthetic fibers, the ON-OFF period of the pump is set to be relatively longer than those for the cotton fabrics and the mixed fabrics, thus reducing the number of pumping operations of the pump compared to the cotton fabrics and mixed fabrics.
  • the present invention provides a drum washing machine, and a method of controlling the drum washing machine, which circulates water contained in a water tub into a rotary tub to be sprayed onto laundry simultaneously with the rotation of the rotary tub in opposite directions, so that the laundry is sufficiently and uniformly soaked with water within a short time, and then the amount of load of the laundry is precisely determined, thus rapidly determining the amount of load of the laundry and improving reliability of the determination.
  • the present invention is advantageous in that it controls the number of water circulation and spray operations performed by a pump according to the materials of the laundry, thus precisely determining the amount of load of laundry within a short time.
US10/811,851 2003-07-31 2004-03-30 Drum washing machine and method of controlling the same Abandoned US20050022564A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2003-53153 2003-07-31
KR1020030053153A KR20050014500A (ko) 2003-07-31 2003-07-31 드럼 세탁기 및 그 제어방법

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US (1) US20050022564A1 (de)
EP (1) EP1502986A1 (de)
KR (1) KR20050014500A (de)
CN (1) CN1580355A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080282479A1 (en) * 2007-05-18 2008-11-20 Adam John Darby Laundry machine, control and method
US20100000117A1 (en) * 2006-06-12 2010-01-07 Lg Electronics Inc. Laundry Dryer and Method for Controlling the Same
US20100024490A1 (en) * 2008-07-30 2010-02-04 Whirlpool Corporation Method and apparatus for determining load size in a washing machine
US20100064445A1 (en) * 2008-09-12 2010-03-18 Whirlpool Corporation Method and apparatus for determining load size in a washing machine
US7706671B2 (en) 2005-03-16 2010-04-27 B2M Asset Management, Llc Multi-function liquid container
US9045851B2 (en) 2010-12-07 2015-06-02 Whirlpool Corporation Method of operating a laundry treating appliance capable of saving liquid for reuse
US20160010268A1 (en) * 2014-07-14 2016-01-14 General Electric Company Washing machine appliance and a method for operating the same
US20160312392A1 (en) * 2015-04-27 2016-10-27 General Electric Company Washing machine appliance
US20170356116A1 (en) * 2016-06-14 2017-12-14 Lg Electronics Inc. Washing machine and method for controlling the same
US20180100259A1 (en) * 2016-10-06 2018-04-12 Emz-Hanauer Gmbh & Co. Kgaa Washing machine and method of controlling the washing machine
US10344420B2 (en) 2016-01-26 2019-07-09 Samsung Electronics Co., Ltd. Washing machine
US11408107B2 (en) * 2017-12-28 2022-08-09 Lg Electronics Inc. Method for controlling washing machine
US20230062451A1 (en) * 2020-01-24 2023-03-02 Electrolux Appliances Aktiebolag Washing appliance, method of detecting operational error, and control arrangement

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EP2034078B1 (de) * 2007-09-05 2011-02-16 Whirlpool Corporation Verfahren zur raschen Kalkulation der in eine Waschmaschine mit Wasserrezirkulationssystem zu ladenden Wassermenge und zur Ausführung dieses Verfahrens geeignete Waschmaschine
DE102008046465A1 (de) * 2008-09-09 2010-03-11 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine
DE102013103965A1 (de) * 2013-04-19 2014-10-23 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine mit Umfluteinrichtung und Waschmaschine
KR20150052697A (ko) * 2013-11-06 2015-05-14 삼성전자주식회사 세탁기 및 그 제어방법
DE102014104962A1 (de) * 2014-04-08 2015-10-08 Miele & Cie. Kg Wasserzulaufsteuerung und Waschvollautomat
CN104088113B (zh) * 2014-07-15 2018-02-16 无锡飞翎电子有限公司 一种滚筒洗衣机负载大小识别方法
EP3983602A4 (de) * 2019-06-14 2023-07-05 Arçelik Anonim Sirketi Waschmaschine mit einem filterelement
CN112411127A (zh) * 2020-10-22 2021-02-26 珠海格力电器股份有限公司 一种桶内负载的分析的方法及装置
CN112458696A (zh) * 2020-11-28 2021-03-09 珠海格力电器股份有限公司 一种洗涤控制方法、控制装置、可读存储介质、洗衣机

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US5987935A (en) * 1997-01-20 1999-11-23 Aktiebolget Electrolux Washing machine
US6167733B1 (en) * 1998-06-30 2001-01-02 Daewoo Electronics Co., Ltd. Drum type washing machine having a pump integrally formed with a filter
US20030024056A1 (en) * 2001-07-31 2003-02-06 Hyung-Sook Kim Method for controlling washing machine according to absorption characteristics of the laundry
US6516484B2 (en) * 2000-03-30 2003-02-11 Lg Electronics Inc. Method of rinsing laundries in washing machine with tilted tub
US6612138B2 (en) * 2001-12-28 2003-09-02 Samsung Electronics Co., Ltd. Drum washing machine
US6981395B2 (en) * 2001-09-28 2006-01-03 Samsung Electronics Co., Ltd. Drum type washing machine

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US5191669A (en) * 1992-01-02 1993-03-09 Whirlpool Corporation Spin method of washing fabric in a horizontal axis washer
US5987935A (en) * 1997-01-20 1999-11-23 Aktiebolget Electrolux Washing machine
US6167733B1 (en) * 1998-06-30 2001-01-02 Daewoo Electronics Co., Ltd. Drum type washing machine having a pump integrally formed with a filter
US6516484B2 (en) * 2000-03-30 2003-02-11 Lg Electronics Inc. Method of rinsing laundries in washing machine with tilted tub
US20030024056A1 (en) * 2001-07-31 2003-02-06 Hyung-Sook Kim Method for controlling washing machine according to absorption characteristics of the laundry
US6981395B2 (en) * 2001-09-28 2006-01-03 Samsung Electronics Co., Ltd. Drum type washing machine
US6612138B2 (en) * 2001-12-28 2003-09-02 Samsung Electronics Co., Ltd. Drum washing machine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7706671B2 (en) 2005-03-16 2010-04-27 B2M Asset Management, Llc Multi-function liquid container
US20100000117A1 (en) * 2006-06-12 2010-01-07 Lg Electronics Inc. Laundry Dryer and Method for Controlling the Same
US8365438B2 (en) * 2006-06-12 2013-02-05 Lg Electronics Inc. Laundry dryer and method for controlling the same
US20080282479A1 (en) * 2007-05-18 2008-11-20 Adam John Darby Laundry machine, control and method
US20100024490A1 (en) * 2008-07-30 2010-02-04 Whirlpool Corporation Method and apparatus for determining load size in a washing machine
US8245342B2 (en) 2008-07-30 2012-08-21 Whirlpool Corporation Method for determining load size in a washing machine
US20100064445A1 (en) * 2008-09-12 2010-03-18 Whirlpool Corporation Method and apparatus for determining load size in a washing machine
US8381341B2 (en) 2008-09-12 2013-02-26 Whirlpool Corporation Method and apparatus for determining load size in a washing machine
US9045851B2 (en) 2010-12-07 2015-06-02 Whirlpool Corporation Method of operating a laundry treating appliance capable of saving liquid for reuse
US20160010268A1 (en) * 2014-07-14 2016-01-14 General Electric Company Washing machine appliance and a method for operating the same
US20160312392A1 (en) * 2015-04-27 2016-10-27 General Electric Company Washing machine appliance
US10030330B2 (en) * 2015-04-27 2018-07-24 Haier Us Appliance Solutions, Inc. Washing machine appliance
US10344420B2 (en) 2016-01-26 2019-07-09 Samsung Electronics Co., Ltd. Washing machine
US20170356116A1 (en) * 2016-06-14 2017-12-14 Lg Electronics Inc. Washing machine and method for controlling the same
US10526739B2 (en) * 2016-06-14 2020-01-07 Lg Electronics Inc. Washing machine and method for controlling the same
US20180100259A1 (en) * 2016-10-06 2018-04-12 Emz-Hanauer Gmbh & Co. Kgaa Washing machine and method of controlling the washing machine
US10570543B2 (en) * 2016-10-06 2020-02-25 Emz-Hanauer Gmbh & Co. Kgaa Washing machine and method of controlling the washing machine
US11408107B2 (en) * 2017-12-28 2022-08-09 Lg Electronics Inc. Method for controlling washing machine
US20230062451A1 (en) * 2020-01-24 2023-03-02 Electrolux Appliances Aktiebolag Washing appliance, method of detecting operational error, and control arrangement

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Publication number Publication date
EP1502986A1 (de) 2005-02-02
CN1580355A (zh) 2005-02-16
KR20050014500A (ko) 2005-02-07

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